- Johnson Controls
- Building Automation and Controls
- HVAC Controls
- Control Sensors
- Duct Humidistat (HH-6705 Series)

Duct Humidistat
HH-6705 Series
Product Overview
The HH-6705 Series Duct Humidistat is typically mounted downstream from a humidifier, and turns the humidifier off (contact opens) when the setpoint is reached. Setpoint is adjustable from 30 to 90% Relative Humidity (RH). To reduce equipment cycling, the HH-6705 Series turns the humidifier on (contact closes) when the humidity in the duct falls 5% below the setpoint.

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